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A survey and a new class of graceful unicylic graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
A graph G admits a graceful labeling if there is a one-to-one map f from the set of vertices of G to such that when an edge xy is assigned the label the resulting set of edge labels is When such a labeling exists, G is called graceful. Rosa showed that a
Max Pambe Biatch’   +2 more
doaj   +1 more source

Graceful labeling construction for some special tree graph using adjacency matrix

open access: yesElectronic Journal of Graph Theory and Applications, 2023
In 1967, Rosa introduced β − labeling which was then popularized by Golomb under the name graceful. Graceful labeling on a graph G is an injective function f : V(G)→{0, 1, 2, …, |E(G)|} such that, when each edge uv ∈ E(G) is assigned the label |f(u)−f(v)|
Nikson Simarmata   +2 more
doaj   +1 more source

Additively graceful signed graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
Let [Formula: see text] be a signed graph of order p and size q. Let [Formula: see text] and [Formula: see text] Let [Formula: see text] be an injective function and let [Graphic: see text]gf(uv)={|f(u)−f(v)| if uv∈E+f(u)+f(v) if uv∈E−The function f is ...
Jessica Pereira   +2 more
doaj   +1 more source

Generating graceful unicyclic graphs from a given forest

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Acharya (1982) proved that every connected graph can be embedded in a graceful graph. The generalization of this result that, any set of graphs can be packed into a graceful graph was proved by Sethuraman and Elumalai (2005). Recently, Sethuraman et al. (
G. Sethuraman, V. Murugan
doaj   +1 more source

Construction of an -labeled tree from a given set of -labeled trees

open access: yesAKCE International Journal of Graphs and Combinatorics, 2017
Inspired by the method of Koh et al. (1979) of combining known graceful trees to construct bigger graceful trees, a new class of graceful trees is constructed from a set of known graceful trees, in a specific way.
G. Sethuraman, P. Ragukumar
doaj   +1 more source

Graceful labeling on torch graph

open access: yesIndonesian Journal of Combinatorics, 2018
Let G be a graph with vertex set V=V(G) and edge set E=E(G). An injective function f:V --> {0,1,2,...,|E|} is called graceful labeling if f induces a function f*(uv)=|f(u)-f(v)| which is a bijection from E(G) to the set {1,2,3,...,|E|}.
Jona Martinus Manulang, Kiki A. Sugeng
doaj   +1 more source

Graceful And Graceful Labeling Of Graphs

open access: yes, 2018
{"references": ["1.\tJ. A. Gallian, A Dynamic survey of graph labeling, The electronic journal of combinatory 16 (2009).DS6. 2.\tI. Gutman, The energy of a graph, Ber. Math-satist. sekt. Forschungsz. Graz 103 (1978), 1-22. 3.\tGutman and B. Zhou, Laplacian energy of a graph, linear algebra appl. 414 (2006), 29-37. 4.\tI.
M. Soundharya, R. Balakumar
openaire   +2 more sources

Improper Graceful and Odd-graceful Labellings of Graph Theory

open access: yesCoRR, 2015
In this paper we define some new labellings for trees, called the in-improper and out-improper odd-graceful labellings such that some trees labelled with the new labellings can induce graceful graphs having at least a cycle. We, next, apply the new labellings to construct large scale of graphs having improper graceful/odd-graceful labellings or having ...
Hongyu Wang 0006, Jin Xu 0002, Bing Yao
openaire   +2 more sources

Applications of mathematical programming in graceful labeling of graphs

open access: yesJournal of Applied Mathematics, 2004
Graceful labeling is one of the best known labeling methods of graphs. Despite the large number of papers published on the subject of graph labeling, there are few particular techniques to be used by researchers to gracefully label graphs. In this paper,
Kourosh Eshghi, Parham Azimi
doaj   +1 more source

Radio Heronian Mean k-Graceful Labeling on Degree Splitting of Graphs

open access: yesRatio Mathematica, 2023
A mapping g:V\left(G\right)\rightarrow{k,k+1,\ldots,k+N-1} is a radio heronian mean k-labeling such that if for any two distinct vertices s and t of G, d\left(s,t\right)+\left\lceil\frac{g\left(s\right)+g\left(t\right)+\sqrt{g\left(s\right)g\left(t\right)
K Sunitha, K Vimal Rani
doaj   +1 more source

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